zio.test.AssertionVariants.scala Maven / Gradle / Ivy
/*
* Copyright 2019-2024 John A. De Goes and the ZIO Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package zio.test
import zio.stacktracer.TracingImplicits.disableAutoTrace
import zio.test.{ErrorMessage => M}
import zio.test.Assertion.Arguments.valueArgument
trait AssertionVariants {
private def diffProduct[T](
obj1: T,
obj2: T,
paramNames: List[String] = Nil,
rootClassName: Option[String] = None
): String = {
val currClassName = rootClassName.getOrElse(obj1.getClass.getSimpleName)
(obj1, obj2) match {
case (seq1: Iterable[Any], seq2: Iterable[Any]) => {
val maxSize = math.max(seq1.size, seq2.size)
val paddedSeq1 = seq1.toVector.padTo(maxSize, null)
val paddedSeq2 = seq2.toVector.padTo(maxSize, null)
paddedSeq1
.zip(paddedSeq2)
.zipWithIndex
.flatMap { case ((subObj1, subObj2), index) =>
val newParamName = s"[$index]"
if (subObj1 != subObj2 && !subObj1.isInstanceOf[Product]) {
val paramName = s"${paramNames.reverse.mkString("")}[$index]"
Some(s"$currClassName$paramName : expected '$subObj2' got '$subObj1'\n")
} else {
diffProduct(subObj1, subObj2, newParamName :: paramNames, Some(currClassName))
}
}
.mkString
}
case (obj1: Product, obj2: Product) if obj1.productArity == obj2.productArity =>
obj1.productIterator
.zip(obj2.productIterator)
.zip(obj1.productElementNames)
.flatMap { case ((subObj1, subObj2), paramName) =>
val newParamName = if (paramName.nonEmpty) s".$paramName" else ""
if (subObj1 != subObj2 && !subObj1.isInstanceOf[Product])
s"$currClassName${paramNames.reverse.mkString("")}$newParamName : expected '$subObj2' got '$subObj1'\n"
else
diffProduct(subObj1, subObj2, newParamName :: paramNames, Some(currClassName))
}
.mkString
case _ => ""
}
}
/**
* Makes a new assertion that requires a value equal the specified value.
*/
final def equalTo[A](expected: A): Assertion[A] =
Assertion[A](
TestArrow
.make[A, Boolean] { actual =>
val result = (actual, expected) match {
case (left: Array[_], right: Array[_]) => left.sameElements[Any](right)
case (left: CharSequence, right: CharSequence) => left.toString == right.toString
case (left, right) => left == right
}
TestTrace.boolean(result) {
if (expected.isInstanceOf[Product]) {
M.text(diffProduct(actual, expected))
} else {
M.pretty(actual) + M.equals + M.pretty(expected)
}
}
}
.withCode("equalTo", valueArgument(expected))
)
}